I have a problem with inserting entities, that use sequences, to a MSSQL 2014 database. I use hibernate that is shipped with Wildfly 10 CR4 (but in CR1 and CR2 I got the sam
I think that your problem could be related to this known issue HHH-9570. (The link actually contains my pull request to my proposed workaround)
Basically, as it happened before with SQL Server 2012, the StandardDialectResolver of Hibernate does not recognise SQL Server 2014 ([Major version 12]) and then the default dialect SQLServerDialect is returned, which is the one for SQL Server 2000